What is the x coordinate of the point that lies on the line 5x + y – 7 = 0 when the y coordinate is 13?

To find the x coordinate of the point lying on the line described by the equation 5x + y – 7 = 0 when the y coordinate is 13, we need to substitute 13 for y in the equation and solve for x.

Substituting y = 13 into the equation:

5x + 13 - 7 = 0

Now, simplify the equation:

5x + 6 = 0

Next, isolate x:

5x = -6

x = -rac{6}{5}

Therefore, the x coordinate of the point on the line when y equals 13 is -1.2.